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<title>font-size</title>
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		<span class="label">相关内容：</span>
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				<strong>其它字体属性参考</strong>
				<span>选择其它项<!--[if lte IE 7]><ins>IE7 and earlier, Get to die</ins><![endif]--></span>
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		<h1 class="tit">font-size</h1>
		<ul class="info">
			<li><strong>版本：CSS1</strong></li>
			<li>2018.3.21</li>
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	<section id="syntax" class="g-mod g-attr">
		<h2 class="tit">语法：</h2>
		<div class="cont">
			<p><strong>font-size</strong>：<a href="#absolute-size">&lt;absolute-size&gt;</a> | <a href="#relative-size">&lt;relative-size&gt;</a> | <a href="../../values/length/length.htm">&lt;length&gt;</a> | <a href="../../values/numeric/percentage.htm">&lt;percentage&gt;</a></p>
			<p id="absolute-size"><strong>&lt;absolute-size&gt;</strong> = xx-small | x-small | small | medium | large | x-large | xx-large</p>
			<p id="relative-size"><strong>&lt;relative-size&gt;</strong> = smaller | larger</p>
			<p><strong>默认值</strong>：<mark class="defaultvalue">medium</mark></p>
			<p><strong>适用于</strong>：所有元素</p>
			<p><strong>继承性</strong>：有</p>
			<p><strong>动画性</strong>：是</p>
			<p><strong>计算值</strong>：指定值</p>
			<p><strong>媒　体</strong>：视觉</p>
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	<section id="value" class="g-mod g-attr">
		<h2 class="tit">取值：</h2>
		<div class="cont">
			<dl>
				<dt><a href="#absolute-size">&lt;absolute-size&gt;</a>：</dt>
				<dd>根据对象字号进行调节。以 medium 作为基础参照，xx-small相当于medium 3/5 (h6)，x-small: 3/4，small: 8/9 (h5)，medium: 1 (h4)，large: 6/5 (h3)，x-large: 3/2 (h2)，xx-large: 2/1 (h1)，</dd>
				<dt><a href="#relative-size">&lt;relative-size&gt;</a>：</dt>
				<dd>相对于父对像中字号进行相对调节。使用成比例的em单位计算。</dd>
				<dt><a href="../../values/length/length.htm">&lt;length&gt;</a>：</dt>
				<dd>用长度值指定文字大小。不允许负值。</dd>
				<dt><a href="../../values/numeric/percentage.htm">&lt;percentage&gt;</a>：</dt>
				<dd>用百分比指定文字大小。其百分比取值是基于父对象中字体的尺寸。不允许负值。</dd>
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		<h2 class="tit">说明：</h2>
		<div class="cont">
			<strong>定义元素的字体大小。</strong>
			<ul>
				<li>对应的脚本特性为：<strong>fontSize</strong>。</li>
			</ul>
		</div>
	</section>
	<section id="compatible" class="g-mod g-attr">
		<h2 class="tit">兼容性：</h2>
		<div class="cont">
			<ul class="support-type">
				<li><span class="support">浅绿</span> = 支持</li>
				<li><span class="unsupport">红色</span> = 不支持</li>
				<li><span class="partsupport">粉色</span> = 部分支持</li>
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						<th>Values</th>
						<th>IE</th>
						<th>Firefox</th>
						<th>Chrome</th>
						<th>Safari</th>
						<th>Opera</th>
						<th>iOS Safari</th>
						<th>Android Browser</th>
						<th>Android Chrome</th>
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				<tbody>
					<tr>
						<td><strong>Basic Support</strong></td>
						<td class="support">8.0+</td>
						<td class="support">40.0+</td>
						<td class="support">40.0+</td>
						<td class="support">8.0+</td>
						<td class="support">40.0+</td>
						<td class="support">8.0+</td>
						<td class="support">4.4+</td>
						<td class="support">28.0+</td>
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	<section id="example" class="g-mod g-attr">
		<h2 class="tit">示例：</h2>
		<div class="cont">
			<textarea cols="90" rows="10">
<!DOCTYPE html>
<html lang="zh-cmn-Hans">
<head>
<meta charset="utf-8" />
<title>font-size_CSS参考手册_web前端开发参考手册系列</title>
<meta name="author" content="Joy Du(飘零雾雨), dooyoe@gmail.com, www.doyoe.com" />
<style>
.test p{margin:15px 0;border:1px solid #000;}
.xx-small p{font-size:xx-small;}
.x-small p{font-size:x-small;}
.small p{font-size:small;}
.medium p{font-size:medium;}
.large p{font-size:large;}
.x-large p{font-size:x-large;}
.xx-large p{font-size:xx-large;}
.smaller p{font-size:smaller;}
.larger p{font-size:larger;}
.float p{font-size:20px;}
.percentage{font-size:20px;}
.percentage span{font-size:60%;}
</style>
</head>
<body>
<ul class="test">
	<li class="xx-small">
		<strong>尺寸大小为xx-small：</strong>
		<p>xx-small尺寸的文字。</p>
	</li>
	<li class="x-small">
		<strong>尺寸大小为x-small：</strong>
		<p>x-small尺寸的文字。</p>
	</li>
	<li class="small">
		<strong>尺寸大小为small：</strong>
		<p>small尺寸的文字。</p>
	</li>
	<li class="medium">
		<strong>尺寸大小为medium：</strong>
		<p>medium尺寸的文字。</p>
	</li>
	<li class="large">
		<strong>尺寸大小为large：</strong>
		<p>large尺寸的文字。</p>
	</li>
	<li class="x-large">
		<strong>尺寸大小为x-large：</strong>
		<p>x-large尺寸的文字。</p>
	</li>
	<li class="xx-large">
		<strong>尺寸大小为xx-large：</strong>
		<p>xx-large尺寸的文字。</p>
	</li>
	<li class="samller">
		<strong>尺寸大小为samller：</strong>
		<p>samller尺寸的文字。</p>
	</li>
	<li class="larger">
		<strong>尺寸大小为larger：</strong>
		<p>larger尺寸的文字。</p>
	</li>
	<li class="float">
		<strong>尺寸大小为20px：</strong>
		<p>20px尺寸的文字。</p>
	</li>
	<li class="percentage">
		<strong>尺寸大小为20px：</strong>
		<p>父对象20px尺寸的文字。<span>我的尺寸只是父对象的60%</span></p>
	</li>
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